THE TUFTED PUFFIN. 235 



middle, or along the extent of a long, narrow, rounded dorsal prominence, 

 which extends from the base to the first groove, afterwards curved in the 

 fourth of a circle, the ridge narrow, in its basal half rounded, narrower and 

 rather sharp towards the end, the sides slightly convex, and marked with 

 four curved transverse grooves, between the nostril and the tip, the edges 

 rather blunt, nearly straight until close to the decurved, narrow, obtuse tip. 

 The basal rim is scrobiculate, the rest of the mandible smooth. The nostrils 

 are linear, direct, close to the edge, and near the base. Lower mandible with 

 the angle extremely short and narrow, the dorsal line nearly straight and 

 ascending, the sides slightly concave, without grooves, the ridge narrow but 

 convex, the tip very narrow, obliquely truncate. The gap extends down- 

 wards a little beyond the base of the bill, and is furnished with a soft corru- 

 gated extensible membrane. 



Head large, oblong, anteriorly compressed; eye of moderate size, with the 

 edges of the eyelids bare; neck short and thick; body full and rounded. 

 Feet short, rather stout; tibia bare for a short space above the joint; tarsus 

 very short, anteriorly with a series of small scutella, the rest with small 

 roundish scales. Hind toe wanting; toes of moderate length, rather slender, 

 scutellate above, connected by reticulated entire membranes, the third toe 

 longest, the fourth little shorter, the second considerably shorter, with a 

 narrow marginal web. Claws strong, of moderate length, compressed, arch- 

 ed, that of the inner toe much curved, of the middle toe with a thin inner 

 edge. 



Plumage close, blended, soft, very short on the head, where, however, 

 along a line over and behind the eye, there is on each side a tuft of long, 

 very slender, acute incurved feathers, of a shining hair-like texture. Wings 

 rather short, curved, narrow, acute; primary quills narrow, incurved, first 

 longest, second slightly shorter, the rest rapidly graduated; secondaries very 

 short, small and rounded. Tail very short, slightly rounded, of sixteen nar- 

 row, rounded, decurved feathers. 



Bill light yellowish-red, the basal rim and the ridge towards the end of the 

 upper mandible bright red, as is the edge of the eyelids. Iris light blue. 

 Feet bright red; webs of a deeper tint; claws black. Sides of the head 

 white; upper part brownish-black; the elongated feathers behind the eye 

 pale yellow. The general colour of the upper parts is brownish-black, gloss- 

 ed with blue, of the lower deep purplish-brown. 



Length to end of tail 15 inches, to end of wings 14, to end of claws 14; 

 extent of wings 22^; wing from flexure 8 T %; tail 2i; bill along the ridge 2f, 

 along the edge of lower mandible 1|£; tarsus 1 T 5 2; middle toe l|f, its claw 



